This can't work (from Reply #7) for 2 reasons
Readings = temp, hum, pres, AnalogValue1, AnalogValue2, AnalogValue3, AnalogValue4, AnalogValue5, DigitalValue1, DigitalValue2, DigitalValue3, DigitalValue4, DigitalValue5;
You build a String from components using +. Readings = temp + hum + press etc
And the components must themselves be Strings. In your case temp is a float
Anyway, all this String manipulation is just going to end in a crash. It is not a good idea to use the String (capital S) class on an Arduino as it can cause memory corruption in the small memory on an Arduino. Just use cstrings - char arrays terminated with 0.
By far the easiest way to send the data using the nRF24 is to create a struct to hold all the datatypes - making sure the total size does not exceed 32 bytes. You already have an example of creating and using a struct.
...R